Sister group to Herichthys?

[Kuni]

I'm trying to put together a small paper that involves a few cichlids, among other things. However, the analysis requires a reasonably robust phylogeny, so that sister taxa can be identified.

Despite reading some of the recent papers on Mesoamerican cichlids, I've been unable to really get a handle on the sister group to Herichthys. It seems like Vieja is the correct candidate, but, well, Vieja also seems like something of a mess at the moment. Theraps and Paratheraps are also potential candidates, I think, but according to the latest Catalogue of Fishes/Fishbase.org, they're not even valid genera(despite being used repeatedly in major papers!). Is there a chance any cichlid taxonomy experts could shine some light on this for me?

[Philippe Burnel]

Once more : don't take fishbase as a reference.......

I know this is not the answer to your question, but it's MY answer

[Kuni]

I'm really using Fishbase as anything more than a ballpark estimator, but I am using the Catalog of Fishes(and I've used the Integrated Taxonomic Information System at http://www.itis.gov in the past).

If there are any other fish databases out there that tend to be more widely accepted, I'd love it if someone could point them out.

[Juan Artigas]

Hulsey et all (2004) using mythocondrial DNA give Paratheraps as the sister group to Herichthys

Hulsey, C. D. & F.J. Garcia de Leon, Y. Sanchez-Johnson, D.A. Hendrickson & T.J. Near (2004) Temporal Diversification of Mesoamerican Cichlid Fishes Across a Major Biogeographic Boundary; Molecular Phylogenetics and Evolution; n, 31, pp. 754-764

[Marko Lenac]

Hulsey et all (2004) using mythocondrial DNA give Paratheraps as the sister group to Herichthys

Hulsey, C. D. & F.J. Garcia de Leon, Y. Sanchez-Johnson, D.A. Hendrickson & T.J. Near (2004) Temporal Diversification of Mesoamerican Cichlid Fishes Across a Major Biogeographic Boundary; Molecular Phylogenetics and Evolution; n, 31, pp. 754-764

where to find this and other scientific papers?